17 messages in org.oasis-open.lists.wsbpelRe: [wsbpel] Fault in Compensation| From | Sent On | Attachments |
|---|---|---|
| Yuzo Fujishima | Oct 31, 2005 8:37 pm | |
| Alex Yiu | Oct 31, 2005 8:58 pm | |
| Satish Thatte | Oct 31, 2005 10:05 pm | |
| Dieter Koenig1 | Nov 1, 2005 8:57 am | |
| Danny van der Rijn | Nov 1, 2005 10:27 am | |
| Alexandre Alves | Nov 1, 2005 7:06 pm | |
| Yuzo Fujishima | Nov 1, 2005 7:13 pm | |
| Chris Keller | Nov 2, 2005 4:40 am | |
| Alex Yiu | Nov 3, 2005 1:39 pm | |
| Chris Keller | Nov 3, 2005 1:48 pm | |
| Dieter Koenig1 | Nov 4, 2005 1:38 am | |
| Dieter Koenig1 | Nov 4, 2005 5:52 am | |
| Chris Keller | Nov 4, 2005 6:01 am | |
| Chris Keller | Nov 4, 2005 6:01 am | |
| Dieter Koenig1 | Nov 4, 2005 6:24 am | |
| Chris Keller | Nov 4, 2005 6:34 am | |
| Alex Yiu | Nov 4, 2005 2:59 pm |
| Subject: | Re: [wsbpel] Fault in Compensation | |
|---|---|---|
| From: | Danny van der Rijn (dan...@tibco.com) | |
| Date: | Nov 1, 2005 10:27:16 am | |
| List: | org.oasis-open.lists.wsbpel | |
Your answers match with my recollection, Alex.
Alex Yiu wrote:
Hi Yuzo,
This question falls into Issue 226 domain. The resolution of Issue 226 needs to be able to answer your question clearly. (I will forward this email to issue 226 thread later.)
My current interpretation: Q1: No there will not be the second invocation of CH1. Once the compensation handler of a completed scope got faulted, the whole scope also considered faulted (maybe we can come up with a more specialized term for that). (We need a life cycle diagram of "scope" here in the spec) The CH of such a scope should be uninstalled. (Because, if not uninstalled, the CH may be in a strange inconsistent state, where the CH logic may executed incorrectly, if it got executed twice.) Q2: Yes, the T1 should be propagated to S2 and handled by F2.
Dieter and Satish, if my interpretation is different from yours and your collection of the preliminary direction discussed in Redmond F2F, please let me know.
Thanks!
Regards, Alex Yiu
Yuzo Fujishima wrote:
Hi,
I have yet other questions regarding compensation. Could someone help me answer to them?
Suppose we have a process as below:
process P1 faultHandler F0 to catch T1 flow scope S1 faultHandler F1 to catch T2 scope S2 faultHandler F2 to catch T1 compensate CA1 sequence while scope S3 compensationHandler CH1 throw T1 throw T2 scope S4
Further suppose that S3 is successfully completed two times, T2 throws a fault, F1 catches the fault, and then CA1 is executed.
What is expected to happen next is that CH1 is called twice, once for each successful completion.
But what will happen if T1 throws a fault in the first invocation of CH1?
Q1: Will there be the second invocation of CH1?
Q2: Will the fault be propagated to CA1 then to S2? Or S3, S1 (FH uninstalled), then to P1? In other words, which will catch T1, F2 or F0?
Yuzo Fujishima NEC Corporation
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